Usoro ihe mgbochi ọkụ nke na-enweghị halogen maka sistemụ mkpuchi TPU site na iji ihe mgbaze DMF
Maka sistemụ mkpuchi TPU nke na-eji Dimethyl Formamide (DMF) dị ka ihe mgbaze, ojiji nke aluminum hypophosphite (AHP) na zinc borate (ZB) dị ka ihe na-egbochi ire ọkụ chọrọ nyocha usoro. N'okpuru ebe a bụ nyocha zuru ezu na atụmatụ mmejuputa:
I. Nyocha nke Aluminom Hypophosphite (AHP)
1. Usoro na Uru nke Ịgbachi Ọkụ
- Usoro:
- Ọ na-agbaze n'oge okpomọkụ dị elu iji mepụta asịd phosphoric na metaphosphoric, na-akwalite mmepụta char na TPU (njide ọkụ condensed-phase).
- Na-ewepụta PO· radicals iji kwụsị mmeghachi omume nke usoro ọkụ ọkụ (njide ọkụ gas-phase).
- Uru:
- Enweghị halogen, obere anwụrụ ọkụ, obere nsí, na-agbaso iwu RoHS/REACH.
- Ezigbo nkwụsi ike okpomọkụ (okpomọkụ ire ere ≈300°C), nke dabara adaba maka usoro nkụcha TPU (nke na-abụkarị <150°C).
2. Ihe ịma aka na ngwọta ngwa
| Ihe Ịma Aka | Ngwọta |
| Mgbasa ozi na-adịghị mma na DMF | Jiri AHP agbanwere n'elu (dịka ọmụmaatụ, ihe njikọ silane KH-550). Usoro mgbasa tupu: AHP bọọlụ na-agba ígwè nwere DMF na ihe mgbasa (dịka ọmụmaatụ, BYK-110) ruo nha ihe <5μm. |
| Oke ibu achọrọ (20-30%) | Njikọta njikọta na ZB ma ọ bụ melamine cyanurate (MCA) iji belata mkpokọta ibu ruo 15-20%. |
| Mbelata nghọta mkpuchi | Jiri AHP nke nha nano (nha ihe na-erughị 1μm) ma ọ bụ gwakọta ya na ihe ndị na-egbochi ire ọkụ (dịka ọmụmaatụ, phosphates organic). |
3. Nhazi na Usoro akwadoro
- Nhazi Ihe Nlereanya:
- Ntọala TPU/DMF: 100 kwa awa
- AHP agbanwere n'elu: 20 phr
- Zinc borate (ZB): 5 phr (njikọ mgbochi anwụrụ ọkụ)
- Ihe na-ekesa ihe (BYK-110): 1.5 phr
- Isi Ihe Ndị Dị Mkpa:
- Gwakọta AHP na dispersant na DMF nke nwere akụkụ abụọ n'okpuru nnukwu nkụcha (≥3000 rpm, nkeji 30), wee gwakọta ya na TPU slurry.
- Ịkpọ nkụ mgbe mkpuchi gasịrị: 120-150°C, gbasaa oge site na 10% iji hụ na DMF na-ekupụ mmiri kpamkpam.
II. Nyocha nke Zinc Borate (ZB)
1. Usoro na Uru nke Ịgbachi Ọkụ
- Usoro:
- Ọ na-emepụta oyi akwa iko B₂O₃ n'oge okpomọkụ dị elu, na-egbochi ikuku oxygen na okpomọkụ (njide ọkụ nke na-adịghị agbanwe agbanwe).
- Ọ na-ewepụta mmiri gbagọrọ agbagọ (~13%), na-agbaze gas ndị na-ere ọkụ ma na-eme ka sistemụ ahụ jụọ oyi.
- Uru:
- Mmetụta mmekọrịta siri ike na AHP ma ọ bụ aluminum trihydroxide (ATH).
- Ọ dị mma iji belata anwụrụ ọkụ, ọ dịkwa mma maka iji obere anwụrụ ọkụ eme ihe.
2. Ihe ịma aka na ngwọta ngwa
| Ihe Ịma Aka | Ngwọta |
| Ịkwụsi ike mgbasa ozi adịghị mma | Jiri ZB nke nha nano (<500nm) na ihe ndị na-eme ka mmiri dị mmiri mmiri (dịka ọmụmaatụ, TegoDispers 750W). |
| Obere arụmọrụ nke ire ọkụ (a chọrọ ibu dị elu) | Jiri ya dị ka onye na-eme ihe n'otu oge (5-10%) na ihe ndị na-egbochi ire ọkụ (dịka ọmụmaatụ, AHP ma ọ bụ phosphorus organic). |
| Mbelata mgbanwe mkpuchi | Mee ka ihe ndị e ji plastik mee kwụọ ụgwọ (dịka ọmụmaatụ, DOP ma ọ bụ polyester polyols). |
3. Nhazi na Usoro akwadoro
- Nhazi Ihe Nlereanya:
- Ntọala TPU/DMF: 100 kwa awa
- ZB nke nha Nano: 8 phr
- AHP: 15 kwa ụbọchị
- Onye nnọchi anya mmiri (Tego 750W): 1 phr
- Isi Ihe Ndị Dị Mkpa:
- Gbasaa ZB na DMF site na iji bead milling (nha ihe dị n'ime ≤2μm) tupu ị gwakọta ya na TPU slurry.
- Gbatịa oge ịkpọ nkụ (dịka ọmụmaatụ, nkeji iri atọ) iji zere mmiri fọdụrụnụ nke na-emetụta ike ire ọkụ.
Atọ. Nyocha Mmekọrịta nke Sistemụ AHP + ZB
1. Mmetụta Ndị Na-egbochi Ọkụ Na-arụkọ Ọrụ
- Njikọta nke Oge Gas na Oge Gbakọrọ:
- AHP na-enye phosphorus maka ịgba ọkụ, ebe ZB na-eme ka oyi akwa agba ahụ sie ike ma na-egbochi agba ọkụ mgbe ọ gasịrị.
- LOI ejikọtara ọnụ: 28-30%, UL94 V-0 (1.6mm) nwere ike iru.
- Mgbochi Anwụrụ:
- ZB na-ebelata mwepụta anwụrụ ọkụ site na >50% (nnwale Calorimeter Cone).
2. Ndụmọdụ maka Nhazi Arụmọrụ
- Ụgwọ Ọrụ Ngwongwo Mekaniki:
- Tinye plasticizer TPU 2-3% (dịka ọmụmaatụ, polycaprolactone polyol) iji mee ka ọ dị mfe ịgbanwe (ogologo ya karịrị 300%).
- Jiri ntụ ntụ ultrafine (AHP/ZB <2μm) iji belata mfu ike nrụgide.
- Njikwa Nkwụsi Ike Usoro:
- Jide n'aka na ịcha mmiri na-agbaze na 2000-4000 cP (Brookfield RV, spindle 4, 20 rpm) maka mkpuchi otu.
IV. Ntụnyere ya na ihe ndị na-egbochi ire ọkụ mmiri nke dabere na ihe mgbaze
| Paramita | Sistemụ AHP + ZB | Phosphorus Liquid-Nitrogen FR (dịka, Levagard 4090N) |
| Na-ebugo | Pasentị 20-30 | 15-25% |
| Nsogbu Mgbasa | Chọrọ ọgwụgwọ tupu oge eruo (mgbanwe dị elu/mkpụcha elu) | Mgbasa ozugbo, ọ dịghị mkpa ka a gbasaa ya |
| Ọnụ ego | Dị ala (~$3-5/kg) | Elu (~$10-15/kg) |
| Mmetụta Gburugburu Ebe Obibi | Enweghị halogen, obere nsí | Nwere ike ịnwe halogen (dabere na ngwaahịa) |
| Nghọta Mkpuchi | Ọkara-translucent gaa na-enweghị ntụpọ | Ihe doro anya nke ukwuu |
V. Usoro Mmejuputa Akwadoro
- Nnwale nke Oke Ụlọ Nyocha:
- Nyochaa AHP/ZB n'otu n'otu na n'ime ngwakọta (ntinye gradient: 10%, 15%, 20%).
- Nyochaa nkwụsi ike nke mgbasa (anaghị agbanye mmiri mgbe awa 24 gachara), mgbanwe viscosity, na nha nha nke mkpuchi ahụ.
- Nnwale Ọkwa Pilot-Scale:
- Mee ka ọnọdụ nkụ (oge/okpomọkụ) ka mma ma nwalee mgbochi ire ọkụ (UL94, LOI) na ihe ndị dị na ya.
- Tụlee ọnụ ahịa: Ọ bụrụ na AHP+ZB ebelata ọnụ ahịa site na >30% ma e jiri ya tụnyere FR mmiri mmiri, ọ ga-adị irè n'akụnụba.
- Nkwadebe maka Ịkwalite Nhazi:
- Soro ndị na-ebubata ngwaahịa rụkọọ ọrụ iji mepụta masterbatches AHP/ZB a gbasasịrị ekesa (dabere na DMF) maka mmepụta dị mfe.
VI. Mmechi
Site na usoro mgbasa ozi a na-achịkwa, AHP na ZB nwere ike ịrụ ọrụ dị ka ihe mgbochi ọkụ dị irè maka mkpuchi TPU/DMF, ma ọ bụrụ na enyere ya:
- Mgbanwe elu + mgbasa dị elua na-etinye ya iji gbochie njikọta nke ihe ndị dị ndụ.
- AHP (isi) + ZB (onye na-eme ihe ike)na-ahazi arụmọrụ na ọnụ ahịa.
- Makannukwu nghọta/mgbanweihe achọrọ, mmiri phosphorus-nitrogen FRs (dịka ọmụmaatụ, Levagard 4090N) ka dị mma karịa.
Sichuan Taifeng New Flame Retardant Co., Ltd. (ISO & REACH)
Email: lucy@taifeng-fr.com
Oge ozi: Mee-22-2025
